What are some tips for finding a trustworthy clinic in South Korea? How do foreigners do it?

Hi, this is Honoka. I'm thinking about getting some cosmetic treatment in Korea next month, but I'm honestly having trouble choosing a clinic. Since I'll be traveling from Japan, I'm worried about language support and whether the clinic is trustworthy... How do you all find reliable clinics?

I'm especially interested in knowing if they have interpreters during consultations and if they can explain things in Japanese. It's hard to judge based on online reviews alone, and I'd like to hear from people who have actually been there... Also, are there any things I should be careful about when looking for a clinic for the first time?

I would appreciate any advice. Thank you!